They are specific to the side because the bumpers are in a 'V' sloping back on each side. The gaurds are cut with onside deaper than the other specific to which side they mount to. I once had a body flunky mix to 113's gaurds and matched 2 lefts on my care 2 right on another. It is so strange looking I couldn't understand how they could say my car was ready. Another reason I do my own work as much as possible.